.content-box .content{
    width: 100%;
    overflow: hidden;
    margin: 100px auto;
}
.content .content-item {
    width: 50%;
    float: left;
    text-align: center;
}
.left-content {
    width: 100%;
    height: 300px;
}
.connecting {
    color: #999;
    margin: 50px 0;
}
.recognizing {
    color: #999;
    margin: 0 10px;
}
.content .content-item .button {
    background: #187cff;
    border: 1px solid #478eea;
    color: #fff;
    text-align: center;
    border-radius: 3px;
    cursor: pointer;
    width: 160px;
    height: 40px;
    margin: 50px 0;
}
.button.end-btn {
    display: none;
}
.recognize-content {
    height: 200px;
    width: 360px;
    background-color: #eee;
    border: 1px solid #eee;
    border-radius: 5px;
    margin: auto;
    text-align: left;
    padding: 10px;
    box-sizing: border-box;
    overflow: scroll;
}
.display-none {
    display: none;
}